Infuriating fees that will shock you

Harry Memnon didn't realize he failed to pay a $1.25 toll in 2009. But then, three years later, he was billed almost $300 for that toll -- a big chunk of which was for penalties. The rest was for fees charged by a debt collector called Linebarger Goggan Blair & Sampson.

Linebarger Goggan Blair & Sampson is one of the largest government debt collectors in the country. It goes after everything from unpaid parking tickets to back taxes. But many of the people the firm goes after say they have been unfairly targeted. Here are three of their stories.